"The PrimeSat Controller is a complete and automatic controller for
Satellite
Communication Stations.
When there is the need to communicate by voice or data through a circular
or elliptical, low or high orbit satellite, it is absolutely essential to
have a
continuous adjustment of the antennas and station operating frequencies,
in order to guarantee the best alignment and RF signal, as also the correct
frequency compensation due to Doppler effect."
http://www.primetec.pt/products.php?sec=2&cat=3&prod=12&lang=en
Mail direct for any questions.
Prefer to sell in the U.K.
For sale @ £120:00p
Cheers,
Dave.